Next phase of “PureView” may well have an “adjustable aperture”. Nokia already has a patent in place!!
The large aperture produces shallow depth-of-field, which means the area of sharp focus in the picture will be small. It is well known that small apertures are used especially for isolating the subject of the picture while throwing the background and other distracting elements out of focus. Some useful applications of large apertures include portraits and wildlife close-ups."-Nokia
“PureView” as described by Nokia is a combination of hardware and software for creating class-leading imaging capability. Just sometime back Juha from Nokia has talked about overcoming the problem of getting DSLR quality images in both daylight and low-light from same mobile camera.
A patent awarded to Nokia just might solve the problem that cellphone cameras currently have. Either they are great at taking pictures in daylight or in low-light with a flash like the Nokia 808 PureView, or they take great pictures in low-light with no flash. The latter is what we see with the Nokia Lumia 920. The reason why these cameras can only do one or the other has to do with the setting of the aperture.
While 808 PureView takes excellent pictures in daylight and low-light with flash, Lumia 920 with PureView Phase 2 is optimised for excellent (DSLR quality) images in low-light with or without flash. Now, the big aperture size of F/2.0 for Lumia 920 plays a big role in getting more light to the sensor, while 808 PureView has aperture size of F/2.4 which in combination with oversampling, helps it take excellent landscape and DSLR quality detailed and sharp pictures with great depth of focus. As described by Nokia themselves in the patent.
"Small aperture with high f- number increases the sharpness of distant objects, or in other words increases depth-of-field, which means more elements of a picture, from foreground to background, become sharply focused. This can create a distinct sense of depth to a photograph, drawing the viewer into the picture. It is well-known that small apertures are used especially for most landscape photographs.
The large aperture produces shallow depth-of-field, which means the area of sharp focus in the picture will be small. It is well known that small apertures are used especially for isolating the subject of the picture while throwing the background and other distracting elements out of focus. Some useful applications of large apertures include portraits and wildlife close-ups."-Nokia
The technology involves using two electrodes, and an electrical circuit that applies voltage to the electrodes. In a nutshell, the idea is to use the current to squeeze an electroactive center unit which adjusts the aperture. Nokia also mentions that it looks to use its patent to make prior art versions of the technology less complex, easier to manufacture and consume less power.
Will we see this on the Nokia Lumia EOS when and if it ever gets announced?
Will we see this on the Nokia Lumia EOS when and if it ever gets announced?
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